Stop motion for spinning machines



12 1927 P. s. smoux STOP IQTION FOR SPINNING MACHINES I Fil ed Nov. 19. 1924 IN VEN TOR.

A TTORNE Y.

Patented Apr. 12, 1927.

UNITED STTES PATENT OFFICE.

PHILIP S. GIBOUX, OF WEST WARREN, MASSACHUSETTS.

STOP MOTION FOR SPINNING MACHINES.

Application filedNovember 19, 1924. Serial No. 750,913.

This invention relates to improvements in means for stopping spinning machines when the bobbins have been filled, and its leading object is to provide an automatic stop motion whereby a bobbin set may be controlled to any degree of loading and the further load ing of the bobbins will be stopped when the predetermined loading has been accomplished, by an automatic movement of the shop motion, causing the belt shifter to move the belt into neutral position.

Vith the above and other objects in view the invention consists in certain new and useful combinations, constructions and arrangements of parts, clearly described in the following specification and fully illustrated in the accompanying drawings, in which Fig. 1 is a side elevation showing the improved stop motion in working position on a spinning frame, which is shown in dotted lines.

Fig. 2 is a vertical sectional view thereof.

Fig. 3 is a longitudinal sectional view taken through the trip mechanism.

Fig. 4 is a transverse sectional view thereof.

Fig. 5 is a detail side elevation on an enlarged scale of a graduated adjusting connection, for varying the amount of loading of the bobbins.

Fig. 6 is a cross sectional view.

Referring to the accompanying drawings 5 designates a spinning frame which is equipped with the load controlling rail 7, and with a shifter rod 8, for shifting the driving belt from the driving pulley to the free or idler pulley. In the ordinary opera tion of the mechanism the rail 7 is raised as the bobbins fill up, and if the operator through any cause fails to discover the danger of overloading the bobbins will be overloaded and the quality of cloth produced will be impaired or lowered.

The present invention is designed to provide a stop motion which will control the loading of the bobbins so that the driving belt will be automatically shifted to non driving or neutral position. The invention can be applied to spinning frames without altering the present spinning mechanism or requiring substitution of old working parts for new parts.

The rail 7 acts to elevate the vertical rod 10, the upper end of which is equipped with an angularly disposed terminal disc or member 11, which normally abuts against the angular foot or lower end 12 of the adjusting plate 18, which is mounted for adjustment on the lever 14 by means of the bolt- 15, which works through the slot 13 formed in the plate 13. The sides of the plate are graduated and the head of the bolt 15 is provided with an index line so that the plate may be adjusted on the lever 14 in any of the various positions within the limit of its movement, determined by the length of the slot 13.

The opposite end of the lever-1i is pivoted to the hanger bracket 16, which is mounted on the spinning fran'ie, and the lever carries between its ends a lug or striker 17, which is designed to engage the cross bar or trigger 18, carried by the plunger 19, which works in the tube or cylinder 20.

The cylinder 20 is mounted on the clamps 21 against the spinning frame, against relative movement, and contains a helical spring 22, which is secured .at one end to the plunger 23 and at the other to the adjusting or tension controlling plug 24, which is fitted in the opposite end of the cylinder. The trigger 18 works in a longitudinal slot 20 formed in the cylinder 20, and the outer end of this slot is enlarged to provide seats or shoulders 25 and 26 on either one of which the trigger is designed to rest. Normally the trigger rests on one of these shoulders or seats, the spring being under tension in the meantime.

The trigger 18 is designed to act on the arm 27 carried by the belt shifter operating rod 28, so that when the trigger has been forcibly displaced from its seat then the trigger will slide in the major portion of the slot 20 under the propelling action of the spring 22, and will propel the arm 27 and the shifter operating rod 28, so as to shift the driving belt into neutral position. The spring is adjusted by means of a nut 29 which is threaded on the stub extension 30 of the plug 24. This plug is provided with a recess 24* into which the look ing pin 31 is adapted to be shifted when it is desired to adjust the tension of the spring. Normally the locking pin 31, which is carried by the plug 24 is held by the spring in one of the slots 31 of the cylinder 20. By turning the plug 24 to the right or left the spring may be placed under compression tension or expansion tension, so that it will react in turning, either to the left or right, corresponding to the direction of its adjustment. In this way the trigger ma y be shifted either to the right or the left by the automatic movement of the spring.

By tightening the nut 29 the pin 31 will be withdrawn from the slot 31 in which it is seated and the spring may be turned in the desired direction, so thatthe required reaction may be obtained.

This adjustment is important in that it permits the use of the device for either right or left hand spinning frames. lVhen the spring has been adjusted to the proper tension and in the required direction the pin 31 is returned to interlocking engagement with one of the slots 31.

The improved stop motion will permit of better operation and lower operating costs of spinning frames, and will increase the safe operating control of workers or operators in charge of a group of spinning frames.

Having described this invention 1 claim 1. A combination with the belt shifter, a housing having a longitudinal slot therein,

1 one end of said slot having a lateral recess,

a cylinder, a plunger in said cylinder provided W1th a pin adapte Q0 engage the renee cess, a spring engaging said plunger to pro pell said pin in said slot, said pin being arranged to engage the belt shifter and said spring being of suff cient force to operate said belt shifter, and means operable by the load controlling rail of a spinning frame for disengaging said pin from said recess to permit said spring and plunger to operate said belt shifter. i

2. A combination with the belt shifter, a housing having a lateral recess, a cylinder, a plunger in said cylinder provided with a pin adapted to engage the recess, a spring engaging said plunger to propel said pin in said slot, said pin being arranged to engage the belt shifter and said spring being of sufficient force to operate said belt shifter, a bracket adapted to be clamped to a spin ning frame, the lever pivoted to said bracket and having a striker to engage said pin, and a rail operated rod for moving said striker against said pin, said rod arranged to operate said lever.

Signed by me at Test lVarren, Mass, Nov. 8, 19%.

PHILIP s. GIEOUX. 

